Bayesian Model Search for Nonstationary Periodic Time Series.
Bayesian Model Search for Nonstationary Periodic Time Series.
复制标题
贝叶斯模型搜索非组织周期性时间序列。
DOI:
10.1080/01621459.2019.1623043
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发表时间:
2019-07-09
影响因子:
3.7
通讯作者:
Huckstepp R
中科院分区:
文献类型:
--
作者:
Hadj-Amar B;Rand BF;Fiecas M;Lévi F;Huckstepp R
We propose a novel Bayesian methodology for analyzing nonstationary time series that exhibit oscillatory behavior. We approximate the time series using a piecewise oscillatory model with unknown periodicities, where our goal is to estimate the change-points while simultaneously identifying the potentially changing periodicities in the data. Our proposed methodology is based on a trans-dimensional Markov chain Monte Carlo algorithm that simultaneously updates the change-points and the periodicities relevant to any segment between them. We show that the proposed methodology successfully identifies time changing oscillatory behavior in two applications which are relevant to e-Health and sleep research, namely the occurrence of ultradian oscillations in human skin temperature during the time of night rest, and the detection of instances of sleep apnea in plethysmographic respiratory traces. Supplementary materials for this article are available online.
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影响因子:
9.6
作者:
Lal, Chitra;Strange, Charlie;Bachman, David
通讯作者:
Bachman, David
DOI:
10.1098/rsif.2017.0885
发表时间:
2018-03
期刊:
Journal of the Royal Society, Interface
影响因子:
--
作者:
Huang Q;Cohen D;Komarzynski S;Li XM;Innominato P;Lévi F;Finkenstädt B
通讯作者:
Finkenstädt B
影响因子:
4.4
作者:
BERLAD, I;SHLITNER, A;LAVIE, P
通讯作者:
LAVIE, P
影响因子:
6.8
作者:
AKAIKE, H
通讯作者:
AKAIKE, H
影响因子:
5.4
作者:
Djuric, PM
通讯作者:
Djuric, PM